LTC3402_15 Datasheet, PDF (12/16 Pages) Linear Technology – 2A, 3MHz Micropower Synchronous Boost Converter

LTC3402
UU
OUTPUT DISCO ECT CIRCUITS
Single Cell Output Disconnect
V_IN = 0.9V TO 1.5V
LTC3402
3
4
V_IN
SW
10
SHDN
7
V_OUT
2 _{MODE/SYNC FB} 8
6
PGOOD
1
R_t
9
V_C
5
GND
ZETEX
FMMT717
V_OUT
RB*
C5
1μF
3402 TA03
*SET RB TO FORCE BETA OF ≤100; RB =
(V_OUT – V_INMIN – 0.7V) • 100
I_OUTMAX
0 = FIXED FREQUENCY
1 = Burst Mode OPERATION
Dual Cell Output Disconnect Allowing Full Load Start-Up
V_IN = 1.8V TO 3V
R7
LTC3402
3
4
1M
V_IN
SW
10
SHDN
7
V_OUT
2
8
MODE/SYNC FB
6
PGOOD
1
R_t
9
V_C
GND ⁵
IRLML6401
RG
1M
V_OUT
C5
1μF
2N2222
0 = FIXED FREQUENCY
1 = Burst Mode OPERATION
3402 TA04
3402fb
12